18906720

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:373

約数の個数: 192

約数和(自身を含む): 72285696

約数和(自身を除く): 53378976

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 32, 34, 35, 40, 42, 48, 51, 56, 60, 68, 70, 80, 84, 85, 96, 102, 105, 112, 119, 120, 136, 140, 160, 168, 170, 204, 210, 224, 238, 240, 255, 272, 280, 331, 336, 340, 357, 408, 420, 476, 480, 510, 544, 560, 595, 662, 672, 680, 714, 816, 840, 952, 993, 1020, 1120, 1190, 1324, 1360, 1428, 1632, 1655, 1680, 1785, 1904, 1986, 2040, 2317, 2380, 2648, 2720, 2856, 3310, 3360, 3570, 3808, 3972, 4080, 4634, 4760, 4965, 5296, 5627, 5712, 6620, 6951, 7140, 7944, 8160, 9268, 9520, 9930, 10592, 11254, 11424, 11585, 13240, 13902, 14280, 15888, 16881, 18536, 19040, 19860, 22508, 23170, 26480, 27804, 28135, 28560, 31776, 33762, 34755, 37072, 39389, 39720, 45016, 46340, 52960, 55608, 56270, 57120, 67524, 69510, 74144, 78778, 79440, 84405, 90032, 92680, 111216, 112540, 118167, 135048, 139020, 157556, 158880, 168810, 180064, 185360, 196945, 222432, 225080, 236334, 270096, 278040, 315112, 337620, 370720, 393890, 450160, 472668, 540192, 556080, 590835, 630224, 675240, 787780, 900320, 945336, 1112160, 1181670, 1260448, 1350480, 1575560, 1890672, 2363340, 2700960, 3151120, 3781344, 4726680, 6302240, 9453360, 18906720]

約数ペア:

[(1, 18906720), (2, 9453360), (3, 6302240), (4, 4726680), (5, 3781344), (6, 3151120), (7, 2700960), (8, 2363340), (10, 1890672), (12, 1575560), (14, 1350480), (15, 1260448), (16, 1181670), (17, 1112160), (20, 945336), (21, 900320), (24, 787780), (28, 675240), (30, 630224), (32, 590835), (34, 556080), (35, 540192), (40, 472668), (42, 450160), (48, 393890), (51, 370720), (56, 337620), (60, 315112), (68, 278040), (70, 270096), (80, 236334), (84, 225080), (85, 222432), (96, 196945), (102, 185360), (105, 180064), (112, 168810), (119, 158880), (120, 157556), (136, 139020), (140, 135048), (160, 118167), (168, 112540), (170, 111216), (204, 92680), (210, 90032), (224, 84405), (238, 79440), (240, 78778), (255, 74144), (272, 69510), (280, 67524), (331, 57120), (336, 56270), (340, 55608), (357, 52960), (408, 46340), (420, 45016), (476, 39720), (480, 39389), (510, 37072), (544, 34755), (560, 33762), (595, 31776), (662, 28560), (672, 28135), (680, 27804), (714, 26480), (816, 23170), (840, 22508), (952, 19860), (993, 19040), (1020, 18536), (1120, 16881), (1190, 15888), (1324, 14280), (1360, 13902), (1428, 13240), (1632, 11585), (1655, 11424), (1680, 11254), (1785, 10592), (1904, 9930), (1986, 9520), (2040, 9268), (2317, 8160), (2380, 7944), (2648, 7140), (2720, 6951), (2856, 6620), (3310, 5712), (3360, 5627), (3570, 5296), (3808, 4965), (3972, 4760), (4080, 4634)]